Avalanche danger is considerable in the Sierra

Feet of snow on Boreal's lodge

March 26, 2011 7:13:49 PM PDT

LAKE TAHOE --

Ski areas in the Sierra reported another four feet of snow on top of the 50-foot snowfall they've received this season. The National Forest Service says avalanche danger is considerable. That means natural avalanches are possible. Human-triggered avalanches are also likely.

Chains are required on I-80 from Placer County to the Donner Lake interchange. No chain controls on Highway 50, but there is a high wind advisory from Sacramento to the El Dorado County line.